OpenTechnical

OT-2026-000089646

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, single stage ejector, manifold pressure sensor, sustained blow-off before set-down

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000089646) never changes.

Identity and time

Publication numberOT-2026-000089646 · never reused
Internal UUID01a0ae9c-1a21-7373-ba79-1a592e307099 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089646
StatusPUBLIC

Content hashes

Canonical text33c70017d1a4c0e4a944c3c85e7fdde8234d98252e0b95246635625fb38ae4c5
Markdown3fc843973a7c973a6247f50dea5db924f424ce2d18a4c75701d6c83d09355144
PDF
Publication page2dec3aca82e6d97ad38595ebf57c92cce6ebd60b96327446c5b9108aeb3f2d13
Manifestdb71a38c8198b13dfbcda38e11c6477a6bc2c61ed1e5236fba20731d6601c530

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureJ33VO1p+FV/Ll8LXuMKfZ4ziyoEEq83muzQS2vqgwYw3EiqLRlEVDXy+k5tkP5bmBQmYWwLmfjuAf1mnL+tfDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:46:38.164891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089646
observed 2dec3aca82e6d97ad38595ebf57c92cc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:38.145842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089646/manifest.json
observed db71a38c8198b13dfbcda38e11c6477a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:38.129218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089646/publication.md
observed 3fc843973a7c973a6247f50dea5db924...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:38.111147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089646/publication.txt
observed 33c70017d1a4c0e4a944c3c85e7fdde8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.